Kinda hard to compare between these 2 cars. It's more of a needs question than preference. I always advise people to have 2 cars. The 2nd car can be bought used for some savings. Having 2 distinctly different cars can afford u the best of both worlds. That said, i am not really a fan of the 991. I test drove a 991 C2S with the idea of replacing my E92 M3, but left with a bad taste in my mouth and I sort of feel bad for feeling this way. Not only is it not better than my M3 in every way, it's falls behind in some areas. Not exactly something i expect to get for that price. You really ought to test drive it to know. Try to talk your Porsche dealers into an extended test drive session for u to gauge the car better!